 html {
  font-size: 15px;
}
body {
    background-color: #222;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}
 h1 {
color: #333;
font-family: Helvetica;
margin: 0;
padding: 0px;
font-size: 8rem;
letter-spacing: -0.3rem;
position: relative;
}
 h1 ::after{
     content: 'CodingStartup';
     color: yellow;
     position: absolute;
     top: 0;
     left: 0;
     clip-path: ellipse(100px 100px at 0% 50%);
      -webkit-clip-path: ellipse(100px 100px at 0% 50%);
    animation: spotlight 5s infinite;
 }
 @keyframes spolight {
     0%{
        clip-path: ellipse(100px 100px at 0% 50%);
        -webkit-clip-path: ellipse(100px 100px at 0% 50%);
     }
     50%{
        clip-path: ellipse(100px 100px at 100% 50%);
        -webkit-clip-path: ellipse(100px 100px at 0% 50%);
     }
     100%{
        clip-path: ellipse(100px 100px at 0% 50%);
        -webkit-clip-path: ellipse(100px 100px at 0% 50%);
     }
 }